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Basic Addition Lesson 10: Number 10

Here's an easy example:

10
+
1
=
11
 
                    
+
  
=
                      
 
   DarkOrange Box   Gold Box   BurlyWood Box   Peru Box   DarkGoldenrod Box   BlueViolet Box   DodgerBlue Box   DarkViolet Box   MidnightBlue Box   MediumPurple Box  plus     Chocolate Box  equals     DarkOrange Box   Gold Box   BurlyWood Box   Peru Box   DarkGoldenrod Box   BlueViolet Box   DodgerBlue Box   DarkViolet Box   MidnightBlue Box   MediumPurple Box   Chocolate Box

We start with ten boxes, add one box, and now have eleven boxes.


Here's another example:

10
+
2
=
12
 
                    
+
    
=
                        
 
   LawnGreen Box   Thistle Box   Fuchsia Box   Green Box   LimeGreen Box   GreenYellow Box   SeaGreen Box   Cyan Box   Chartreuse Box   DarkSlateBlue Box  plus     PowderBlue Box   SandyBrown Box  equals     LawnGreen Box   Thistle Box   Fuchsia Box   Green Box   LimeGreen Box   GreenYellow Box   SeaGreen Box   Cyan Box   Chartreuse Box   DarkSlateBlue Box   PowderBlue Box   SandyBrown Box

We start with ten boxes, add two boxes, and now have twelve boxes.


Try this problem.

10
+
3
=
 
                    
+
      
=
                          
 
   Lavender Box   DarkOrchid Box   Magenta Box   ForestGreen Box   DarkOliveGreen Box   Purple Box   Goldenrod Box   Orchid Box   Turquoise Box   SteelBlue Box  plus     DarkOrange Box   Gold Box   BurlyWood Box  equals     Lavender Box   DarkOrchid Box   Magenta Box   ForestGreen Box   DarkOliveGreen Box   Purple Box   Goldenrod Box   Orchid Box   Turquoise Box   SteelBlue Box   DarkOrange Box   Gold Box   BurlyWood Box

We start with ten boxes, add three boxes, and now have thirteen boxes.


In order to do basic addition, you must memorize some equations but fear not: FoxyMath will help you! When you are finished with this lesson, you will know the following equations:

10 + 1 = 11
10 + 2 = 12
10 + 3 = 13
10 + 4 = 14
10 + 5 = 15
10+ 6 = 16
10 + 7 = 17
10 + 8 = 18
10 + 9 = 19
10 + 10 = 20
10 + 11 = 21
10 + 12 = 22


The following exercise will help you learn the above equations and what they mean. Please take your time: take whatever time you need to learn the material.

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